CASH, CASH EQUIVALENTS AND INVESTMENTS (Tables)

3 Months Ended

Apr. 30, 2023

CASH, CASH EQUIVALENTS AND INVESTMENTS

Schedule of available-for-sale securities

	April 30, 2023
			Allowance for		Gross		Gross		Estimated
	Amortized		Credit		Unrealized		Unrealized		Fair
	Cost		Losses		Gains		Losses		Value
U.S. Treasury notes:
Due in one to two years	$	15,014	$	—	$	—	$	37	$	14,977
Due in two to three years		15,399		—		—		—		15,399
Totals	$	30,413	$	—	$	—	$	37	$	30,376